125677579 has 2 divisors, whose sum is σ = 125677580. Its totient is φ = 125677578.

The previous prime is 125677553. The next prime is 125677621. The reversal of 125677579 is 975776521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125677579 - 2¹⁷ = 125546507 is a prime.

It is not a weakly prime, because it can be changed into another prime (125677679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62838789 + 62838790.

It is an arithmetic number, because the mean of its divisors is an integer number (62838790).

Almost surely, 2^125677579 is an apocalyptic number.

125677579 is a deficient number, since it is larger than the sum of its proper divisors (1).

125677579 is an equidigital number, since it uses as much as digits as its factorization.

125677579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 926100, while the sum is 49.

The square root of 125677579 is about 11210.6011881611. The cubic root of 125677579 is about 500.9018111620.

The spelling of 125677579 in words is "one hundred twenty-five million, six hundred seventy-seven thousand, five hundred seventy-nine".